Merge branch 'PHP-7.0' into PHP-7.1

diff --cc Zend/tests/self_xor.phpt
index f56177567bb8d7870e918734f38a2e6c281437aa,f306a9cd6929877c7b3718df32002b821fc65f93..e36a315b10d0a9deb121a751b13a2855dce5f7aa
--- 1/Zend/tests/self_xor.phpt
--- 2/Zend/tests/self_xor.phpt
+++ b/Zend/tests/self_xor.phpt
@@@ -28,12 -28,8 +28,12 @@@ echo "Done\n"
  ?>
  --EXPECTF--
  int(109)
 +
 +Warning: A non-numeric value encountered in %s on line %d
  int(11)
 +
 +Notice: A non well formed numeric value encountered in %s on line %d
  int(45312)
- string(1) "f"
- string(2) "ff"
- Done
+ string(1) "F"
+ string(2) "FF"
+ Done